My first thought for how to abuse a mana dork like Jegantha, the Wellspring would be to run ways to untap her that will allow you to go infinite, but those generally all involve paying generic mana costs
Decks built around sacrificing creatures are sometimes known as Aristocrats decks due to cards like Falkenrath Aristocrat and Vampire Aristocrat which have sacrifice effects that power them up
I included three counters that counter target spell and bounce something at the same time quite ably - Lost in the Mist, Cryptic Command, and Very Cryptic Command
Trading Post ensures you can turn those stolen artifacts straight into card draw
Smuggler's Copter is the most dominant card (by percentage of decks that play it), and while it's featured in both of the big decks, it's also propping up a bunch of second-tier decks like Mardu / RW Vehicles and Bx Zombies, so getting rid of the looter scooter might actually make the format less diverse, as odd as that sounds
Until next time, wash your hands and be well
